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Anonymous · #1 (**permalink**) 09-03-2004

I am trying to use Mappoint in a .Net Console app. I don't need to see the map, I just need mileage.

This is what I have

Dim objMap As New AxMapPoint.AxMappointControl()
objMap.NewMap(MapPoint.GeoMapRegion.geoMapNorthAme rica)

The latter command errors immediately with the following message:

"Exception of type InvalidActiveXStateException was thrown."

I have no other Mappoint related statements before this point.
Anyone have any thoughts on that?

**Eric Frost** · #2 (**permalink**) 09-03-2004

There's several .Net / MapPoint desktop apps on this website, I think the simplest and most relevant to your inquiry might be:

http://www.mp2kmag.com/a69--automate....mappoint.html

Hope this helps!

Eric

EdB · #3 (**permalink**) 09-04-2004

Eric,

I appreciate the response. I was able to get my situation to work by adding a windows form to my console app, adding a Mappoint control to that form, and just never showing the form.

But I wanted to to try your solution. Did someone just write that, or did they actually try it? Here's why I ask. When I copy and paste the solution as is, I get several compile errors. 6 with the project setting "Strict" on (which I normally use), and 3 with it off. Here are the errors.

1&2) Dim WithEvents oMpApp As MapPoint.Application
Dim WithEvents oMap As MapPoint.Map

Withevents variable does not raise any events

3,5&6) oMpApp = GetObject(, "MapPoint.Application")
myLoc = oMap.FindAddressResults(, , , states(I), , "USA")(1)
oMap.SaveAs(states(I), 2)

Option Strict On disallows implicit conversions from 'System.Object' to 'MapPoint.Application'

4) oMpApp = New MapPoint.Application()

'New' cannot be used on an interface.

I can get around the other 5......I don't know how to get around this one.

Ed

**Eric Frost** · #4 (**permalink**) 09-04-2004

Hmm, yeah I had no problems with it. I used it with the free command-line tools the .NET SDK, not VS.NET.

Eric

cd4000 · #5 (**permalink**) 09-06-2004

I second EdBick's situation as I am getting the same error when trying to use New on MapPoint.Application.

I had to resort to CreateObject() function to get around this problem, which is inconsistent with many MapPoint samples out there.

The other strange problem I couldn't resolve is why GetPictureFromObject() always returns some default map of the North-Western US region even if the actual map is totally different (and yes, I have saved it before calling GetPictureFromObject()).

Alex

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Mappoint and a .Net Console App

Mappoint and a .Net Console App

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